4CsClO3 🔥→ 3CsClO4 + CsCl
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- Decomposition of caesium chlorate
Decomposition of caesium chlorate yields caesium perchlorate and caesium chloride (Other reactions are here). This reaction is an oxidation-reduction reaction and is classified as follows:
Table of contents
Reaction data
Chemical equation
- Decomposition of caesium chlorate
General equation
- Thermal decomposition with redox
- Thermally decomposable substanceSelf redox agent🔥⟶ ProductOxidation product + ProductReduction product
- Thermal decomposition of oxoacid salt with redox
- Oxoacid saltSelf redox agent🔥⟶ ProductOxidation product + ProductReduction product
Oxidation state of each atom
- Decomposition of caesium chlorate
Reactants
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| CsClO3 | Caesium chlorate | 4 | – | Thermally decomposable Oxoacid salt |
Products
| Chemical formula | Name | Coefficient | Type | Type in general equation |
|---|---|---|---|---|
| CsClO4 | Caesium perchlorate | 3 | Oxidized | – |
| CsCl | Caesium chloride | 1 | Reduced | – |
Thermodynamic changes
Changes in standard condition
- Decomposition of caesium chlorate◆
ΔrG −125.7 kJ/mol K 1.05 × 1022 pK −22.02
| Standard enthalpy of reaction ΔrH° kJ · mol−1 | Standard Gibbs energy of reaction ΔrG° kJ · mol−1 | Standard entropy of reaction ΔrS° J · K−1 · mol−1 | Standard heat capacity of reaction at constant pressure ΔrCp° J · K−1 · mol−1 | |
|---|---|---|---|---|
per 1 mol of Equation | −125.5 | −125.7 | 1.9 | – |
per 1 mol of | −31.38 | −31.43 | 0.47 | – |
per 1 mol of | −41.83 | −41.90 | 0.63 | – |
per 1 mol of | −125.5 | −125.7 | 1.9 | – |
Changes in aqueous solution
- Decomposition of caesium chlorate◆
ΔrG −124.98 kJ/mol K 7.86 × 1021 pK −21.90
| Standard enthalpy of reaction ΔrH° kJ · mol−1 | Standard Gibbs energy of reaction ΔrG° kJ · mol−1 | Standard entropy of reaction ΔrS° J · K−1 · mol−1 | Standard heat capacity of reaction at constant pressure ΔrCp° J · K−1 · mol−1 | |
|---|---|---|---|---|
per 1 mol of Equation | −139.26 | −124.98 | −46.8 | – |
per 1 mol of | −34.815 | −31.245 | −11.7 | – |
per 1 mol of | −46.420 | −41.660 | −15.6 | – |
per 1 mol of | −139.26 | −124.98 | −46.8 | – |
Thermodynamic data of reactants
| Chemical formula | Standard enthalpy of formation ΔfH° kJ · mol−1 | Standard Gibbs energy of formation ΔfG° kJ · mol−1 | Standard molar entropy S° J · K−1 · mol−1 | Standard molar heat capacity at constant pressure Cp° J · K−1 · mol−1 |
|---|---|---|---|---|
| CsClO3 (cr) | -411.7[1] | -307.9[1] | 156.1[1] | – |
| CsClO3 (ai) | -362.25[1] | -299.97[1] | 295.4[1] | – |
* (cr):Crystalline solid, (ai):Ionized aqueous solution
Thermodynamic data of products
| Chemical formula | Standard enthalpy of formation ΔfH° kJ · mol−1 | Standard Gibbs energy of formation ΔfG° kJ · mol−1 | Standard molar entropy S° J · K−1 · mol−1 | Standard molar heat capacity at constant pressure Cp° J · K−1 · mol−1 |
|---|---|---|---|---|
| CsClO4 (cr) | -443.09[1] | -314.26[1] | 175.06[1] | 108.28[1] |
| CsClO4 (ai) | -387.61[1] | -300.54[1] | 315.1[1] | – |
| CsCl (cr) | -443.04[1] | -414.53[1] | 101.17[1] | 52.47[1] |
| CsCl (g) | -240.20[1] | -257.80[1] | 255.96[1] | 36.94[1] |
| CsCl (ai) | -425.43[1] | -423.24[1] | 189.54[1] | -146.9[1] |
* (cr):Crystalline solid, (ai):Ionized aqueous solution, (g):Gas
References
List of references
- 1Janiel J. Reed (1989)The NBS Tables of Chemical Thermodynamic Properties: Selected Values for Inorganic and C1 and C2 Organic Substances in SI UnitsNational Institute of Standards and Technology (NIST)
- ^ ΔfH°, -411.7 kJ · mol−1
- ^ ΔfG°, -307.9 kJ · mol−1
- ^ S°, 156.1 J · K−1 · mol−1
- ^ ΔfH°, -362.25 kJ · mol−1
- ^ ΔfG°, -299.97 kJ · mol−1
- ^ S°, 295.4 J · K−1 · mol−1
- ^ ΔfH°, -443.09 kJ · mol−1
- ^ ΔfG°, -314.26 kJ · mol−1
- ^ S°, 175.06 J · K−1 · mol−1
- ^ Cp°, 108.28 J · K−1 · mol−1
- ^ ΔfH°, -387.61 kJ · mol−1
- ^ ΔfG°, -300.54 kJ · mol−1
- ^ S°, 315.1 J · K−1 · mol−1
- ^ ΔfH°, -443.04 kJ · mol−1
- ^ ΔfG°, -414.53 kJ · mol−1
- ^ S°, 101.17 J · K−1 · mol−1
- ^ Cp°, 52.47 J · K−1 · mol−1
- ^ ΔfH°, -240.20 kJ · mol−1
- ^ ΔfG°, -257.80 kJ · mol−1
- ^ S°, 255.96 J · K−1 · mol−1
- ^ Cp°, 36.94 J · K−1 · mol−1
- ^ ΔfH°, -425.43 kJ · mol−1
- ^ ΔfG°, -423.24 kJ · mol−1
- ^ S°, 189.54 J · K−1 · mol−1
- ^ Cp°, -146.9 J · K−1 · mol−1